Question: What desalination plant material has the greatest yield strength?
Paraphrase: What material usend in desalination plants had the biggest yield strength?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q214609 . ?ent wdt:P5529 ?obj . ?ent wdt:P366 wd:Q51932686 } ORDER BY DESC(?obj)LIMIT 5